The White system has no planets, asteroids larger than a speck of dust, or even comets. Yet it still must be considered a stellar system, rather than a lone X-ray star.

It has the ring.

Encircling the White star is a clearly artificial ring, a satellite of truly staggering proportions encompassing a size of nearly the exact dimensions of Terra's orbit. No one knows who built it, or who lived there. Almost everything that is known about this truly stupefying feat of engineering is conjecture. Still, some things are known, or possibly merely assumed:

The ring was intended to be inhabited. There are clear habitations that are presumed to be domiciles visible from fly-bys.

The creators were not humanoid. The best guess of forensic xenobiologists were that they slithered along the ground like a snake.

The ring was never intended to suround an x-ray star. Much of outer surface of the ring is melted by it's star. In some places, enough to breach the hull and let loose any atmosphere the ring might have once contained.

The White system once actually was a system. Images from the Hubble telescope picked out planets and possibly even an asteroid belt, which makes the ring younger than 20 000 years. They are not here now, presumably used as raw material to create the ring.

The ring makers left the ring, quite possibly when their star devolved into an x-ray star. There is no indication where they might have gone, and any technology the may have left behind has been fused into inert lumps by the incredible radiation.

Even the most dense planetary system would not be enough to provide the raw material to make the ring. The thought that apparently masses the equivalent of stellar systems were somehow imported humbles the best minds of humanity.

The ring is the most impressive feat of engineering in known space.

There is no meteorite damage, even micro-meteorite damage, on the ring. All the damage seems to be from the x-ray star's radiation.

However, the ring is not uninhabited now. Archaeology students have set up (highly radiation shielded) camps to study the ring. Additionally, the military has set up huge solar collectors on the ring to take advantage of its lack of atmosphere. They are also experimenting on using x-rays to cut off fragments of the ring, with limited success.